Re: [orca-list] Progress update on the "List of" dialogs

[Krishnakant Mane <krmane gmail com>]

Hi Joanie,
This sounds very interesting and too tempting.
But do I need to have the latest infrastructure?
Do I need Python 3 and all other latest things to test this work?
I don't wish to drop Ubuntu 12.04 and Python 2.7 for quite some time.
So kindly suggest me the way I can take this latest version.
Perhaps pullling from git can help?
Also, sorry for being lazy, but I can't remember the git command to pull 
the latest version of Orca.
Happy hacking.
Krishnakant.
On 02/05/2013 01:19 PM, Joanmarie Diggs wrote:
> Hey all.
>
> Since a number of you have been wanting this, I have just committed to
> master the largely functional, but still in progress, "List of" dialog
> support. While it's not done, it's good enough for testing. Here's where
> things stand:
>
> 1. The bindings. Almost always, the modifier is Ctrl + Alt. And almost
>     always the key is the same as the default binding for that object
>     type. As a result, you have:
>
>     Ctrl + Alt + B: List of buttons
>     Ctrl + Alt + C: List of comboboxes
>     Ctrl + Alt + E: List of entries
>     Ctrl + Alt + F: List of form fields (this is the odd duck)
>     Ctrl + Alt + H: List of headings
>     Ctrl + Alt + 1: List of headings at level 1
>     Ctrl + Alt + 2: List of headings at level 2
>     Ctrl + Alt + 3: List of headings at level 3
>     Ctrl + Alt + 4: List of headings at level 4
>     Ctrl + Alt + 5: List of headings at level 5
>     Ctrl + Alt + 6: List of headings at level 6
>     Ctrl + Alt + I: List of list items
>     Ctrl + Alt + O: List of "large objects" (aka text chunks)
>     Ctrl + Alt + P: List of paragraphs
>     Ctrl + Alt + Q: List of blockquotes
>     Ctrl + Alt + R: List of radio buttons
>     Ctrl + Alt + U: List of unvisited links
>     Ctrl + Alt + V: List of visited links
>     Ctrl + Alt + X: List of checkboxes
>
>     There are currently two unbound other "list of dialogs":
>     List of lists - turns out Ctrl + Alt + L locks the session <grins>
>     List of links - there is no "plain ol' links" command, so no key yet
>     Candidate bindings for the above welcome.
>
>     As for the other object types:
>     * I still need to figure out how best to present tables and make
>       a decision about cells.
>     * Our existing landmark and live region code isn't very reliable
>       period, so I'd like to debug that before I add dialog support.
>     * As for anchors and separators. Before I debug the existing (non
>       dialog related) code for them, is anyone actually using them for
>       navigation? If they are completely useless, we can nuke them.
>
> 2. The dialog itself:
>
>     The default button is Jump to. There is also an Activate button
>     which becomes sensitive as appropriate (based on AtspiAction
>     exposure to us).
>
>     The information about each object is arranged in columns. This
>     means you can read the full row if you want lots of info; just
>     the cell if you don't. (Remember Orca + F11 toggles this.) You
>     can also sort the columns by moving focus to the header and
>     pressing Space.
>
>     Type-ahead search is enabled and associated with the first column
>     which is where the most important thing (label/name) is.
>
>     My to-do list in the dialog area includes refinement, such as:
>     * Currently there is no spoken or brailled indication of how many
>       matches were found. You can get this via where am I in the table
>       in the meantime.
>     * Currently the dialog pops up when there are 0 items. Orca should
>       just present the fact that there are no matches and not waste time
>       showing a dialog.
>     * Currently you are placed at the top of the list. Orca makes no
>       attempt (yet) to position you in the list based on where you were
>       on the page.
>     * It's rare, but on occasion, we have no label/name/text for an
>       object. So we either need to try harder for those oddball items
>       or verify if they are useless and never should have passed the
>       match test in the first place.
>     * It would be nice for Orca to say something when the table is
>       resorted. That's not limited to this feature. That's in general.
>       It may involve work on both the GTK side and the Orca side.
>
>     All of the above I am working on and will keep you posted.
>
> 3. Other known issues:
>
>     If you are looking for objects on a ginormous page, there is a chance
>     the request will time out. The timeout is something AT-SPI2 does to
>     prevent lock-ups and has been wonderful in that regard. When there is
>     such an error, Orca will present a message so you don't wonder why
>     nothing is happening. For me the timeouts have been rare, but they do
>     occur with Firefox. (The same pages do not time out with WebKitGtk.)
>     There's not a lot I can do here -- and anything I might be able to do
>     would be a sad hack.
>
>     When reading text objects (e.g. paragraphs), they are treated like
>     pure text objects, including links. This was by design. If you want
>     Orca to announce the roles and such, you could read the paragraph
>     in the page itself or by SayAll. If you want to quickly skim through
>     paragraphs and other text objects for content, I think you'll find
>     this helpful.
>
> Lastly, I hope you will find that while it's not quite done, it is
> pretty darned functional. And, again, I'll keep working on it.
>
> Please let me know if you have any questions. Thanks!!
> --joanie
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